Whiffletree.



Patented June l8, 19m;

A. LA RUE.

WHIIFFLETBEE.

(Application filed Feb 18, 1901.

(No modal.)

Abram Lam/w ABRAM LA RUE, OF 'DANVILLE, PENNSYLVANIA.

WHIFFLETREE.

SPECIFICATION forming part of Letters Patent No. 676,751, dated June 18,1901. Application filed February 18, 1901- Serial No. 47,769. (Nomodel.)

To aZZ whom it may concern:

Be it known that I, ABRAM LA RUE, a citizen of the United States,residing at Dan ville, in the county of Montour and State ofPennsylvania, have made a certain new and use ful Invention in\Vhiffietrees; and I declare the following to be a full, clear, andexact de scription of the same, such as will enable others skilled inthe art to which it appertains to make and use the invention, referencebeing had to the accompanying drawings, and to let-' ters of referencemarked thereon, which form a part of this specification.

Figure l is a plan view of the doubletree, partly in section. Fig. 2 isa similar view of the singletree. Fig. 3 is a section on the line 00:10, Fig. 1. Fig. 4 is a section on the line y 11 Fig. l. Fi 5 is asection on the line a z, Fig. 1. Fig. 6 is a front view of a yoke having my device applied thereto.

The invention relates to whiftletrees or draft-bars; and itconsists inthe novel constructions and combinations of parts, as here inafter setforth.

In the accompanying drawings the letter ct designates the forwardportion of the whiffletree, which consists of a section of steel pipebent in the form of a bow or are whereof the convexity is in front. Thecurvature of this portion of the whiftletree is not very marked.Attached to this slightly-curved pipe is the back portion 5 of the tree,which also consists of a bent piece of steel pipe formed in two bracingbranches meeting at the center of the whiffietree. The lateral portionsor branches 3 s of the section of pipe I) are straight, and their ends ac are beveled or cut away in front in a convex manner longitudinally andin a concave manner transversely to fit the cylindroid ends of theforward pipe a, to which they are fitted neatly, and are secured inposition by the flattened conoidal clips (I d, the broad ends of whichare creased or bent inward, as at e, to fit the valley formed betweenthe rounded surfaces of the pipe ends when they come together. The endsof the pipes are perforated, as at ff, and the clips are also perforatedat f f to correspond, the fastening boltsor staples (indicated at g g)passing through the perforations and serving to hold the pipe endssecurely in position. At the middle of the whiftletree is provided abrace h, the ends of which are concave transversely and convexlongitudinally, and this brace is placed in position between the middleportions of the front and back pipe-sections before the ends are securedby the clips. Around the middle portions of the whiffletree and closelybinding the two pipesections and the intervening brace is the band 75,which is secured by a small pinl to the front section of pipe, so thatit cannot move laterally. The brace is also secured against lateralmovement by small indentations or pins in engagement therewith, asindicated at m 0%. Through the band and brace near the back pipe'sectionis made a bolt-hole n for the reception of the bolt of aclevis or otherdevice for the attachment of the whiffietree to a wagon, plow, or othermachine of suitable character. In this const-ruction the ends of one ofthe pipe sections are continued in full pipe or cylindroid form to theeXtremities, while those of the other pipe-section are beveled to fitthem. It is preferred to bevel the ends of the back section, whichserves as a tie or girder, in order not to weaken the arch of the frontsection; but, if desired, the ends of the front section may be beveled.In either case the fit should be accurate and the clip should be closelyadapted in order to avoid crevices, which would hold soil and render thetree unsightly.

The front section a is an arch or brace, which is tied back by the rearsection of piping, the brace 77. serving to give great firmness to thebar and at the same time to afford a part for'the perforation for thedraft-bolt.

In order to avoid very acute edges of the brace 72, if made of wood,which is preferable, the band is brought a little beyond the upper andlower surfaces of the pipes, so that each end of the band forms apipe-seat, as indicated at Having described this invention, what Iclaim, and desire to secure by Letters Patent, 1s-

A whiflletree, consisting of a front arc-form section of steel pipe,andaback section of steel brace, both brace and band being perforatedpipe, having two straight bracing branches for the draft-bolt,substantially as specified. 10 meeting at the center of the Whiffletree,one In testimony whereof I affix my signature of said sections havingbeveled ends fitting in presence of two witnesses.

the cylindroid ends of the other section, and ABRAM LA RUE. secured byclips, a middle brace having con- WVitnesses: cave ends fitting saidpipes, and amiddle band C. SHULTZ,

connecting said pipes, and covering in said ROY A. KISNER.

